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b=9-9/20*10
We move all terms to the left:
b-(9-9/20*10)=0
We add all the numbers together, and all the variables
b-(-9/20*10+9)=0
We get rid of parentheses
b-9+9/20*10=0
We multiply all the terms by the denominator
b*20*10+9-9*20*10=0
We add all the numbers together, and all the variables
b*20*10-1791=0
Wy multiply elements
200b*1-1791=0
Wy multiply elements
200b-1791=0
We move all terms containing b to the left, all other terms to the right
200b=1791
b=1791/200
b=8+191/200
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